Object-Oriented Programming and the Objective C Language, NeXT Computer, Inc., April 1993.When reading this book recall what you have learned from Mises, Hayek, Rothbard, and Kirzner about economics, and then ask "What would belong in a general theory of the craft of object-oriented composition?" Think about the Austrian School of economics as being about boundaries, messages, and the emergence of levels of organization not contemplated by those who laid down the fundamental rules of a complex adaptive system. —Leif Smith